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Forum: FPGA, VHDL & Verilog 4.3" LCD Touch Panel LTM


Author: Dlitwp S. (dlitwp_s)
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Hi everyone ^_^
Can I use >>4.3" LCD Touch Panel LTM<< as an input mmm take this easy 
example if I draw vertical line " NO. 1 " the LEDs appear "01" binary. 
Is it possible? why I asked because most applications on videos talking 
about how to control photo view. < my FPGA DE2 >

Author: Lothar Miller (lkmiller) (Moderator)
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Dlitwp S. wrote:
> Can I use >>4.3" LCD Touch Panel LTM<< as an input
A display usually in an output device.

> if I draw vertical line " NO. 1 " the LEDs appear "01" binary.
???
In which way do you draw a "vertical line"? And how should this be 
related to which LEDs?

Author: Dlitwp S. (dlitwp_s)
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Lothar Miller wrote:
> A display usually in an output device.
well, what about touchscreen i/p and o/p in same time ???

>> if I draw vertical line " NO. 1 " the LEDs appear "01" binary.
> ???
Here is the Question I had pen and touchscreen I can draw on this 
screen, then can I connect these two devices "Touchscreen" and "LEDs 
panal" via FPGA together.

Author: Lothar Miller (lkmiller) (Moderator)
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Dlitwp S. wrote:
> Here is the Question I had pen and touchscreen I can draw on this screen
Will you use a softcore processor on the FPGA? Or do you want to handle 
the whole stuff in HDL?

Author: Dlitwp S. (dlitwp_s)
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yeah, I want to handle all stuff by "VHDL" in general.

Author: Lothar Miller (lkmiller) (Moderator)
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Dlitwp S. wrote:
> yeah, I want to handle all stuff by "VHDL" in general.
1. start with displaying something on the screen
2. display a picture out of the FGPA RAM on the screen
3. read AD values out of the touch ADC
4. calculate display coordinates out of the ADC values
5. manipulate the corresponding pixel in the RAM

Optimistic forecast if you have a fundamental knowledge(1) about VHDL:
Steps 1 and 2 will eat up at least 2 weeks. Step 3 will need 1 week, and 
then you will need one more week for step 5.

If youre very well known to VHDL it will take only one week.

(1)
Means: some blinking led and chasing lights, and lets say, a simple 
watch on 7-segment display

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